Wiring harness waterproof device for rear axle motor of pure electric vehicle

Abstract

The utility model discloses a pure electric vehicle rear axle motor wire harness waterproof device which comprises a motor installation support, a plurality of welding nuts are arranged on the front side edge and the rear side edge of the motor installation support, the welding nuts are matched with bolts, a waterproof protective cover is arranged on the left lower side of the motor installation support, and the waterproof protective cover is fixed to the motor installation support through the bolts. According to the utility model, the structure can be simple, and the problems that a connector for connecting the low-voltage wiring harness and the motor can be washed by rainwater when the rear axle of the pure electric vehicle runs in rainy days, and wiring harness faults are easy to occur for a long time are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pure electric car technical field, concretely relates to a pure electric car rear axle motor wire harness waterproof device. BACKGROUND

[0002] The low-voltage wire harness connector of the motor of the passenger pure electric car rear axle is arranged towards the ground due to the overall vehicle arrangement. Such design may face a significant problem in the daily driving of the vehicle, especially in rainy days or humid environments: rainwater may directly wash the connector part connected to the motor of the low-voltage wire harness. With the passage of time, continuous rainwater washing may not only cause the decline of the sealing performance of the connector, but also may cause the penetration of moisture into the wire harness, thereby causing circuit short circuit, corrosion or poor contact and other wire harness faults. These faults not only affect the power performance and driving safety of the vehicle, but also may cause the abnormality of the motor control system, increase the maintenance cost and vehicle downtime. SUMMARY

[0003] The utility model aims at providing a pure electric car rear axle motor wire harness waterproof device to solve the problem raised in the above background.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a pure electric car rear axle motor wire harness waterproof device, comprising a motor mounting bracket, a waterproof shield is arranged on the lower left side of the motor mounting bracket, and the waterproof shield is fixed on the motor mounting bracket by means of bolts.

[0005] Preferably, a plurality of drainage holes are arranged below the waterproof shield.

[0006] Preferably, a bracket is arranged on the upper left side of the waterproof shield, and the bracket is used for fixing the low-voltage wire harness and the motor water cooling pipe.

[0007] Preferably, a plurality of welded nuts are arranged on the front and rear sides of the motor mounting bracket, and the welded nuts are matched with the bolts.

[0008] Preferably, the diameter of the drainage hole is 15 mm.

[0009] The utility model has the following technical effects and advantages:

[0010] The waterproof shield prevents rainwater from washing the low-voltage wire harness connector, and also prevents the problem of damage to the wire harness connector by splashing of stones during operation.

[0011] The bracket arranged on the waterproof shield improves the reliability of the assembly of the wire harness and the cooling pipe. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 The utility model is a schematic diagram;

[0013] Fig. 2 It is three-dimensional schematic view of the waterproof shield of the utility model.

[0014] In the drawing: 1 bolt, 2 waterproof shield, 3 support, 4 low-voltage wire harness, 5 motor water cooling pipe. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0016] The utility model provides a kind of pure electric car rear axle motor wire harness waterproof device as Figs. 1-2 As shown in a kind of pure electric car rear axle motor wire harness waterproof device, including motor mounting support, the front and rear side of motor mounting support is equipped with several welded nuts, welded nut is matched with bolt 1, the lower left side of motor mounting support is equipped with waterproof shield 2, waterproof shield 2 is fixed on motor mounting support by bolt 1, the upper left side of waterproof shield 2 is equipped with support 3, and support 3 is used to fix low-voltage wire harness 4 and motor water cooling pipe 5.

[0017] Among them, to prevent rainwater from washing low-voltage wire harness connector, use the motor mounting support on rear axle, avoid other pipeline fixing seat, increase several waterproof shield installation fixed point, i.e. welded nut, bolt 1 is used in cooperation with welded nut, waterproof shield 2 is fixed on motor mounting support, and the fixed support 3 of low-voltage wire harness and motor cooling pipe is increased on waterproof shield 2 simultaneously, which can improve the reliability of wire harness and cooling pipe assembly.

[0018] In some specific embodiments of the utility model, several drain holes are arranged below waterproof shield 2.

[0019] Among them, by increasing several drain holes below waterproof shield 2, the water splashed on rainy days can be quickly discharged.

[0020] Finally, it should be noted that: the above only for preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or equivalent replacement is carried out to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A pure electric vehicle rear axle motor wire harness waterproof device, comprising a motor mounting bracket, characterized in that: The lower left side of the motor mounting bracket is provided with a waterproof shield (2), which is fixed on the motor mounting bracket by bolts (1).

2. The waterproofing device for a wire harness of an electric vehicle rear axle motor according to claim 1, characterized in that: The waterproof shield (2) is provided with a plurality of drainage holes below.

3. The waterproofing device for a wire harness of an electric vehicle rear axle motor according to claim 2, characterized in that: The left upper part of the waterproof shield (2) is provided with a bracket (3) for fixing a low-voltage wire harness (4) and a motor water cooling pipe (5).

4. The waterproofing device for a wire harness of an electric vehicle rear axle motor according to claim 1, characterized in that: The front and rear sides of the motor mounting bracket are provided with a plurality of welded nuts, which are matched with the bolts (1).

5. The waterproofing device for a wire harness of an electric vehicle rear axle motor according to claim 2, characterized in that: The diameter of the drainage hole is 15 mm.

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